Home / 12,920.48-19,365.14-6,677.13

Finding the Fourth Proportional to 12,920.48, 19,365.14 and 6,677.13

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Solution

The fourth proportional to 12,920.48, 19,365.14 and 6,677.13 is: 10,007.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,920.48 : 19,365.14 = 6,677.13 : x
  2. Step 2: Convert to fraction form
    12,920.48/19,365.14 = 6,677.13/x
  3. Step 3: Cross multiply
    12,920.48x = 19,365.14 × 6,677.13
  4. Step 4: Simplify right side
    12,920.48x = 129,303,646.56
  5. Step 5: Solve for x
    x = 129,303,646.56/12,920.48
  6. Step 6: Final answer
    x = 10,007.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.